What if every scientific study on cigarettes, smoking and health run by the tobacco industry and all of the “data” that has emerged over the past 50 years is severely compromised at the deepest levels?
What if most or all of the data the tobacco industry has been generating continuously to support its claims is fundamentally compromised by flawed research protocols and methodologies, contaminated research materials, inexplicable oversights, and good old-fashioned deceptive practices? What if all this can be directly linked to a single, underlying,’Achilles Heel’ flaw that can be easily verified?
What would that imply for regulations on tobacco products, for anti-tobacco legislation, for treaties and international agreements, for health care and insurance policies, for victims and juries, and for generations of legal decisions and precedent – if all were based on flawed science?
The core assumption of virtually all smoking & health research is that it is studying tobacco and only tobacco.
A corollary assumption is that cigarettes are tobacco and that cigarette smoke is tobacco smoke.
So when cigarette smoke is generated for research purposes, the assumption is that the smoke being studied is tobacco smoke or, if that assumption is ever questioned, its functional equivalent.
Virtually every research study on smoking and health run by the tobacco industry and its worldwide network of scientists and doctors since the 1970’s is based on the use of University of Kentucky standard “Reference Cigarettes”. Most or possibly all of the data derived using these standard Reference Cigarettes, which are used worldwide in virtually all tobacco industry studies involving cigarettes, are compromised and must be re-evaluated.
There are four main reasons why I believe that tobacco industry standard Reference Cigarettes consistently produce false and misleading data.
There is non-random selection bias in the commercially-sourced leaf tobacco components of Reference Cigarettes.
The tobacco leaf used in production of Reference Cigarettes is “commercially-sourced”, and is a non-random sample of the commercially tobacco types available at the time of the manufacturing run. Reference cigarette manufacturers, working to published industry standards, simply use whatever Flue-Cured, Burley, Maryland and Oriental tobacco leaf is convenient for a particular run of Reference Cigarettes. (It’s unclear whether there is more than one manufacturer for a run of reference cigarettes.) The Flue-Cured, for example, could be from North Carolina or Brazil or Zimbabwe. As long as it’s “Flue-Cured”, it meets tobacco industry scientific research standards and no other selection standards or procedures are specified by the certifying body for the tobacco industry. This means there is significant potential variability between the “Flue-Cured” selected for manufacturing into a run of Reference Cigarettes and the Flue-Cured that another manufacturer might use in their cigarette production. The same is true for all tobacco types selected and used in Reference Cigarettes.
There is uncontrolled and unacknowledged variability in the “sheet tobacco” components of Reference Cigarettes.
Tobacco Sheet is manufactured from tobacco waste, stems and scrap of variable, multiple, indeterminate foreign and domestic origins, and includes non-tobacco constituents that also vary depending on the “sheet” or “recon” tobacco manufacturing process used. Tobacco sheet is a 20-25% component of Reference Cigarettes. Millions of pounds of foreign-sourced tobacco waste is imported into the US annually for the specific purpose of “tobacco sheet” manufacturing by multiple manufacturers in multiple factories using multiple processing methods. Yet the industry standards for Reference Cigarette manufacturing don’t acknowledge this critical source of variability in the components of Reference Cigarettes, the reference standard for all industry-sponsored cigarette testing worldwide. The highly variable nature of a 20-25% component of all Reference Cigarettes seems sufficient in itself to invalidate data based on the use of Reference Cigarettes. Further, some of the Reference Cigarette recon is standard recon and some is “Sweitzer method” recon, and the two processes are not equivalent.
Finally, there’s variation in tobacco itself. “Tobacco is not a homogeneous product. The flavor, mildness, texture, tar, nicotine, and sugar content vary considerably across varieties or types of tobacco. Defining characteristics of different tobacco types include the curing process (flue-, air-, sun-cured) and leaf color (light or dark), size, and thickness. A given type of tobacco has a different quality depending on where it is grown, its position on the stalk (leaves near the bottom of the stalk are lower in quality), and weather conditions during growing and curing.” (from Tobacco and the Economy , USDA)
There are known but not included in analysis, highly variable concentrations of agrichemical and pesticide residues on the leaf tobacco component and in the sheet tobacco component of Reference Cigarettes.
Tobacco leaf, sheet, waste and scrap all carry a burden of biologically active pesticides that are not on the industry list of “toxicants” tested for in standardizing the Reference Cigarettes. Extensive research literature establishes the widespread presence of pesticide residues on commercially-sourced tobacco and tobacco waste. When testing is performed on cigarette smoke using the Reference Cigarettes as a baseline or standard, the measured smoke stream constituents will be the byproducts of the interaction of recognized, known and acknowledged tobacco constituents along with an undetermined number and concentration of unknown pesticides whose common presence on commercial, and especially on imported tobacco is well-established. There is no way to tell how the measured ‘toxicants’ in any sets of results using Reference Cigarettes have been affected by combustion of pesticide residues because the tobacco being used is not tested for the presence or concentration of those residues. Because of this error in research design, any smoke stream ‘toxicant’ data based on Reference Cigarettes will be flawed in unpredictable ways and should not be accepted without re-evaluation.
The tobacco leaf used for manufacturing Reference Cigarettes is sourced from standard unsegregated commercial markets for Flue-Cured, Maryland, Oriental, and Burley tobacco leaf.